Adjective toughened has 2 senses
  1. tough, toughened - physically toughened; "the tough bottoms of his feet"
  2. tempered, treated, hardened, toughened - made hard or flexible or resilient especially by heat treatment; "a sword of tempered steel"; "tempered glass"
,Verb toughen has 1 sense
  1. toughen - make tough or tougher; "This experience will toughen her"
    --1 is one way to
    strengthen
    Sample sentences:
    Somebody ----s something
    Something ----s somebody
    Something ----s something
,
TOP